\documentclass{standalone}
\usepackage{tikz}
\usepackage{ctex,siunitx}
\setCJKmainfont{Noto Serif CJK SC}
\usepackage{tkz-euclide}
\usepackage{amsmath}
\usetikzlibrary{patterns, calc}
\usetikzlibrary {decorations.pathmorphing, decorations.pathreplacing, decorations.shapes,}
\begin{document}
\small
\begin{tikzpicture}[>=latex,scale=1.0]
  % \useasboundingbox(-2,-2.2)rectangle(2,1.5);
  \foreach \x in {0.5,-0.5}
  {
    \fill[left color=gray,right color=gray, middle color=white](\x-0.03,0.5)rectangle(\x+0.03,-0.3);
    \draw[very thin,darkgray](\x,-0.3)--++(0,-0.3)--(0,-1);
  }
  \fill[left color=brown,right color=brown, middle color=white]
  (-0.8,1.4)--(-0.8,0.5)arc(180:360:0.8 and 0.4)--(0.8,1.4);
  \draw[very thin](0.25,-0.8)--++(0.5,0)node[right]{钨丝};
  \end{tikzpicture}
\end{document}